Exhibit 32.2


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. Section 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002



      In connection with the Annual Report on Form 10-K of Century Bancorp, Inc.
      (the "Company") for the year ended December 31, 2004, as filed with the
      Securities and Exchange Commission on March 15, 2005 and amended on April
      4, 2005 (the "Report"), each of the undersigned, certifies, to the best
      knowledge and belief of the signatory, pursuant to 18 U.S.C. Section 1350,
      as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002,
      that:

            (1)   The Report fully complies with the requirements of Section
                  13(a) or 15(d) of the Securities Exchange Act of 1934; and

            (2)   The information contained in the Report fairly presents, in
                  all material respects, the financial condition and results of
                  operations of the Company.

                                       /s/ Paul V. Cusick, Jr.
                                       ---------------------------------------
                                       Paul V. Cusick, Jr.
                                       Vice President and Treasurer
                                       (Chief Financial Officer)


                                       Date: April 4, 2005